Purushottama Dutta, was the leader of the five Kayastha-Kshatriya clans who migrated sometime in the 10th century from Kannauj of present-day Uttar Pradesh to Gour, Bengal. His family traces its pre-historic origins ... Gotra ... to the holy sage Rishi Bharadwaja. 

The other four Kayastha-Kshatriyas were Makaranda Ghosha of Shaukalin gotra, Dasharatha Vasu of Gautama gotra, Kalidasa Mitra of Vishwamitra gotra, and Virata Guha of Kashyapa gotra.

Five Brahmin clans had also migrated with the Kayastha-Kshatriya clans. They came to Bengal at the invitation of King Adisura to attend his Yagna; a ritual sacrifice to receive a boon from the Gods. The Brahmins conducted the rituals, while the Kayastha-Kshatriyas protected the sacrificial altar and royal estates. After completion of the Yagna, the king wanted them to stay back; so he gifted lands to settle down. Purushottama was awarded Mallapur; probably the present-day Mallarpur of Birbhum District. From there, his descendants moved to several places; Bally, Andul, and Hatkhola being the most significant locations.

This document is a fascinating historical account of Purushottama Dutta and his descendants, one of the oldest traditional families of Bengal; covering a span of 11 centuries & about 29 generations. Extracts from numerous manuscripts and references with great detail have been included to validate the authenticity of the event.